Update service_container/service_closures.rst

OskarStark · HeahDude · web-flow · commit aa8aa483fdcf · 2023-05-11T05:57:08.000+02:00
Co-authored-by: Jules Pietri &lt;heahdude@yahoo.fr&gt;
diff --git a/service_container/service_closures.rst b/service_container/service_closures.rst
@@ -75,7 +75,7 @@ argument of type ``service_closure``:
 
                     <!--
                     In case the dependency is optional
-                    <argument type="service" id="mailer" on-invalid="ignore"/>
+                    <argument type="service_closure" id="mailer" on-invalid="ignore"/>
                     -->
                 </service>
             </services>
